1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 1999 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include "../common/compat.h" 30 #include <stdio.h> 31 #include <sys/types.h> 32 #include <unistd.h> 33 34 /* 35 * If writing to a utmp-like file, map the utmp structure to 36 * new format on the fly. 37 */ 38 extern int conv2utmpx(char *, char *, int); 39 40 int 41 write(int fd, char *buf, int size) 42 { 43 return (bc_write(fd, buf, size)); 44 } 45 46 int 47 bc_write(int fd, char *buf, int size) 48 { 49 int ret, off; 50 int nsize; 51 char *nbuf; 52 53 if (fd_get(fd) != -1) { 54 nsize = getmodsize(size, sizeof (struct compat_utmp), 55 sizeof (struct utmpx)); 56 57 if ((nbuf = (void *)malloc(nsize)) == NULL) { 58 (void) fprintf(stderr, "write: malloc failed\n"); 59 exit(-1); 60 } 61 62 (void) memset(nbuf, 0, nsize); 63 64 ret = conv2utmpx(nbuf, buf, size); 65 66 if ((ret = _write(fd, nbuf, ret)) == -1) { 67 free(nbuf); 68 return (-1); 69 } 70 71 free(nbuf); 72 73 ret = getmodsize(ret, sizeof (struct utmpx), 74 sizeof (struct compat_utmp)); 75 return (ret); 76 } 77 78 return (_write(fd, buf, size)); 79 } 80 81 /* From SunOS/SVR4 utmp.h */ 82 #define USER_PROCESS 7 83 #define DEAD_PROCESS 8 84 85 extern int 86 conv2utmpx(char *nbuf, char *buf, int len) 87 { 88 struct compat_utmp *ut; 89 struct utmpx *utx; 90 91 utx = (struct utmpx *) nbuf; 92 ut = (struct compat_utmp *) buf; 93 94 while ((char *)ut < (buf + len)) { 95 (void) strcpy(utx->ut_user, ut->ut_name); 96 (void) memset(utx->ut_id, 0, sizeof (utx->ut_id)); 97 (void) strcpy(utx->ut_line, ut->ut_line); 98 utx->ut_pid = 0; 99 if ((strcmp(utx->ut_user, "") == 0) && 100 (strcmp(utx->ut_host, "") == 0)) 101 utx->ut_type = DEAD_PROCESS; 102 else 103 utx->ut_type = USER_PROCESS; 104 utx->ut_exit.e_termination = 0; 105 utx->ut_exit.e_exit = 0; 106 utx->ut_tv.tv_sec = ut->ut_time; 107 utx->ut_tv.tv_usec = 0; 108 utx->ut_session = 0; 109 utx->ut_syslen = sizeof (ut->ut_name) + 1; 110 (void) strcpy(utx->ut_host, ut->ut_host); 111 ut++; 112 utx++; 113 } 114 return ((char *) utx - nbuf); 115 } 116